Saturday, August8, 2020
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Marine Weather and Tides
Garden City, SC

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:32AMSunset 8:10PM Saturday August 8, 2020 4:50 AM EDT (08:50 UTC) Moonrise 10:14PMMoonset 10:02AM Illumination 81% Phase: Waning Gibbous; Moon at 19 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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AMZ254 Coastal Waters From Little River Inlet To Murrells Inlet Sc Out 20 Nm- 312 Am Edt Sat Aug 8 2020
Through 7 am..SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms.
Today..S winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms, mainly in the morning.
Tonight..SW winds 5 to 10 kt. Seas 2 ft.
Sun..SW winds 5 to 10 kt. Seas 2 ft. Scattered showers and tstms.
Sun night..SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms.
Mon..SW winds 5 to 10 kt. Seas 1 foot, then 2 ft in the afternoon. A chance of showers and tstms.
Mon night..SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms in the evening.
Tue..S winds 5 to 10 kt. Seas 1 foot, then 2 ft. A chance of showers and tstms.
Wed..S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms.
AMZ200 312 Am Edt Sat Aug 8 2020
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. High pressure offshore and a piedmont trough inland will produce light winds through the weekend and early next week. Scattered Thunderstorms will remain the main marine weather hazard through the period.


7 Day Forecast for Marine Location Near Garden City, SC
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location: 33.58, -79     debug


Area Discussion for - Wilmington, NC
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FXUS62 KILM 080701 AFDILM

Area Forecast Discussion National Weather Service Wilmington NC 301 AM EDT Sat Aug 8 2020

SYNOPSIS. High pressure offshore and a weak trough of low pressure inland will maintain warm and humid conditions with scattered showers and thunderstorms through most of next week.

NEAR TERM /THROUGH SUNDAY/. The mid level trough that has been a feature on weather maps for the past few days will weaken today and dissipate by Sunday. The humid and unstable airmass will remain, and forecast CAPE values are 2500 to 3000 J/kg both today and Sunday. Despite almost nonexistent synoptic forcing, the seabreeze and subsequent outflow boundaries are expected to develop scattered showers and thunderstorms both days. Today's storms are expected to develop in the coastal Cape Fear region around noon, spreading westward throughout the afternoon. Much like yesterday, lack of shear should limit organization but large instability may still allow individual cells to pulse strongly. Highs should range from 85-90, coolest on the beaches.

Inland convection should dissipate during the evening, but should redevelop offshore overnight. Sunday will be largely similar today but with slightly drier air aloft. This should result in a little less convective coverage and slightly warmer temperatures.

SHORT TERM /SUNDAY NIGHT THROUGH MONDAY NIGHT/. Mundane weather pattern in place Sunday night through Monday night, with zonal flow aloft and Bermuda high pressure to the east. Plenty of moisture and instability for scattered afternoon convection Monday. Highs Monday around 90, with heat indices around 100 degrees, and lows Sunday and Monday night in the low 70s.

LONG TERM /TUESDAY THROUGH FRIDAY/. More of the same summer weather in the long term, with warm and humid conditions and afternoon to evening convection. Zonal pattern aloft Tuesday becomes more southerly Wednesday through end of the week as an upper ridge builds to the southeast. This will allow increased moisture to advect in from the south end of the week, elevating PW values to 2+ inches and increasing chances of scattered convection with moderate rain rates in the afternoon and evening Wednesday through Friday. Near normal highs continue, with low to mid 70 dewpoints maintaining elevated humidity, and lows each night in the low 70s.

AVIATION /07Z SATURDAY THROUGH WEDNESDAY/. Diminishing showers along the coast at 06Z could rejuvenate into more active convection before daybreak, but models suggest the bulk of it will remain offshore. I'm most concerned about the KILM airport where there's probably a 20 percent chance of active convection redeveloping before daybreak. Elsewhere VFR conditions should dominate, except at KFLO where low ceilings should develop after the cirrus clouds clear out around 09Z. Flight category should improve to VFR by 13Z, with scattered afternoon showers and thunderstorms expected to be most prevalent into the KILM vicinity after 17Z.

Extended Outlook . Weak troughing inland will result in isolated thunderstorms over the weekend into early next week, although coverage will be isolated to scattered. Any storms could bring brief IFR conditions in low visibility.

MARINE. Through Sunday..

Light south to southwest winds will continue through the weekend between high pressure well offshore and a weakening low pressure trough across the inland Carolinas. Outside of thunderstorms winds should average 10 knots or less with seas around 2 feet in a southeast swell. Ongoing thunderstorm activity early this morning should fade away by 10 AM. Inland thunderstorms this afternoon should mainly remain inland with little impacts on the coastal waters. Models indicate additional showers and thunderstorms developing late tonight and lasting into Sunday morning.

Sunday Night through Wednesday..

Outside of scattered thunderstorm chances each day and night, benign marine conditions continue Sunday night through Wednesday. S-SW winds 5-10 kts persist with Bermuda high offshore and weak pressure gradient over the area. Seas 1-2 ft through mid-week, combination of 1 ft 10 s SE swell and weak 1 ft S wind wave.

ILM WATCHES/WARNINGS/ADVISORIES. SC . None. NC . None. MARINE . None.

SYNOPSIS . ILM NEAR TERM . TRA SHORT TERM . VAO LONG TERM . VAO AVIATION . TRA MARINE . TRA/VAO


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MROS1 - 8661070 - Springmaid Pier, SC 7 mi51 min 75°F
NIWS1 - North Inlet-Winyah Bay Reserve, SC 19 mi66 min SSE 2.9 77°F 1019 hPa75°F
41024 - Sunset Nearshore (SUN 2) 33 mi43 min WNW 5.8 G 7.8 79°F 82°F1019.2 hPa
41119 33 mi34 min 82°F1 ft

Wind History for Springmaid Pier, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Myrtle Beach International Airport, SC8 mi55 minN 010.00 miA Few Clouds74°F73°F100%1019.5 hPa
Conway Horry County Airport, SC18 mi56 minN 010.00 miFair70°F69°F100%1019.6 hPa
North Myrtle Beach Grand Strand Airport, SC22 mi58 minN 010.00 miFair74°F72°F94%1019.2 hPa

Link to 5 minute data for KMYR

Wind History from MYR (wind in knots)
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Last 24hrSW4CalmCalmE3SW8S3S6SE10SE7S7S9S8S9S10S11S10S10NW3NW9CalmSE4N3CalmCalm
1 day agoNW3CalmCalmCalmCalmS8S11S10S10N3NE3E7S6S6S7S8S10S8S6S5CalmCalmCalmS3
2 days agoS7S11NW5N6N6NW34CalmSE6E3SE9E5SE9SE6SE6SE6S4SE6S7S6S7S5S6S8

Tide / Current Tables for Garden City Pier (ocean), South Carolina
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Garden City Pier (ocean)
Click for Map
Sat -- 05:26 AM EDT     0.53 feet Low Tide
Sat -- 06:33 AM EDT     Sunrise
Sat -- 11:02 AM EDT     Moonset
Sat -- 11:32 AM EDT     4.91 feet High Tide
Sat -- 05:38 PM EDT     0.98 feet Low Tide
Sat -- 08:08 PM EDT     Sunset
Sat -- 11:13 PM EDT     Moonrise
Sat -- 11:48 PM EDT     4.97 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.14.43.32.21.20.60.61.42.53.64.44.84.94.43.52.61.71.111.62.53.54.34.8

Tide / Current Tables for Oaks Creek, upper end, South Carolina
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Oaks Creek
Click for Map
Sat -- 12:18 AM EDT     4.53 feet High Tide
Sat -- 06:34 AM EDT     Sunrise
Sat -- 07:05 AM EDT     0.56 feet Low Tide
Sat -- 11:02 AM EDT     Moonset
Sat -- 12:38 PM EDT     4.25 feet High Tide
Sat -- 07:17 PM EDT     1.04 feet Low Tide
Sat -- 08:09 PM EDT     Sunset
Sat -- 11:13 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.54.443.22.41.50.80.60.91.82.83.74.14.23.93.42.61.91.31.11.21.92.83.6

Weather Map
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wmap_A
GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Wilmington, NC (4,6,7,8)
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Ground Weather Radar Station Wilmington, NC
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.